452 Lancaster D. Burling — 



date be undertaken among the dolerites of Fifeshire. For the 

 relationship of these masses — both quartz-' and olivine-bearing 

 types — to the plication and fracturing of the associated sedimentary 

 rocks, and the discovery, if possible, of their connexion with the 

 ash necks of the district ; also a consideration of whatever evidence 

 they may afford bearing upon the general problems of igneous 

 intrusion, are all matters deserving of careful study. It is therefore 

 satisfactory to record that in the midst of the actual field providing 

 these interesting and promising subjects of research, the teaching of 

 geology has been resumed in the old University of St. Andrew's. 



A Cannbro-Ordovician Section in the Beaverfoot 

 Range, near Golden, British Columbia, 



By Lancaster D. Burling. 



§1. The Beaverfoot Range lies im.mediately to the east of the 

 Eocky Mountain Trench, and is the westernmost of the ranges 

 included in the Rocky Mountain system. 



The first geologist to study this section was McConnell, who 

 published in 1887 ^ a report on the geology along the newly com- 

 pleted mountain section of the Canadian Pacific Railway. The 

 broader features of the striking overturn which afliects the entire 

 Beaverfoot Range were described, fossils were found in both the 

 stratigraphically underlying " G-raptolite Shales " and the strati- 

 graphically overlying " Halysites Beds ", and a cross-section 

 was given showing the overturned nature of the rocks composing 

 the Beaverfoot Range. 



§ 2. The present paper offers new data regarding the stratigraphy 

 of the upper part of the Cambrian and the Ordovician section in the 

 Beaverfoot Range. Two new formation names are proposed : 

 Grlenogle Shales for the " Graptolite Shales " (see §§ 5, 8, and 12), 

 and Beaverfoot Formation for the " Halysites Beds " (see §§ 4 and 7). 

 There are also presented detailed sections of the G-lenogle shales 

 (§§ 5 and 14) and the overlyuag Beaverfoot Formation (§ 4), with 

 reference to the fossil horizons secured. There is a short discussion 

 of the Goodsir Formation, which is shown to be partly of Cambrian 

 age (see § 16), and there is a generalized table correlating the rocks 

 exposed in the Beaverfoot Range with those exposed in Mount 

 Bosworth on the continental divide, 25 miles to the east (see § 17). 



§ 3. The section was measured in the summit of the range (where 

 it is crossed by the Whiskey Trail), overlookiiag the Columbia 

 Valley at Mons on the Kootenay Central Railway, about 15 miles 

 south-east of Golden, British Columbia, and is as follows : — 



^ Ann,. Rep.' Geol. and Nat. Hist. Surv. Canada, 1887, Part D, pp. 1-41. 



